| http://www.w3.org/ns/prov#value | - Hard rock has large pores that we call caves in southern New Mexico where water has carved out softer rock to create hollow spaces.With more coal fired power planets trying to find ways to store CO2 gases that they cannot release into the air they are turning to drilling into deep rock and then injecting those gases into that pore space which would displace anything such as air that is already in
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